General Motors Chairman Ed Whitacre, Jr. (R) and GM Vice President, Sales Service and Marketing Susan Docherty talk with each other after the automaker's introduction of the Cadillac XTS Platinum Concept vehicle during press days of the North American International Auto show at Cobo Center in Detroit, Michigan January 12, 2010. Reuters Pictures logo Reuters Pictures 25 months ago

General Motors Chairman Ed Whitacre, Jr. (R) and GM Vice President, Sales Service and Marketing Susan Docherty talk with each other after the automaker's introduction of the Cadillac XTS Platinum Concept vehicle during press days of the North American International Auto show at Cobo Center in Detroit, Michigan January 12, 2010.